Spring-wheel.



M. vmt|r1ms1f:1\r. SPRING WHEEL.

APPLICATION FILED SEPT. 29, 1913.

Patented Feb. 24, 1914.

E mi l E n coLUMBlA PLANOURAPH C0..wAsmNGr oN. D. C.

bnr s errori,

MARIUS lVIATI-IIESEN, OF SAN ANTONIO, TEXAS, ASSIGNOR TO MATHIESENSPR-ING CUSHION WHEEL COMPANY, A CORPORATION OF MAINE.

SPRING-WHEEL.

Specification of Letters Patent.

atented lteb 211, 1914i.

To @ZZ whom t may concern:

Be it known that I, Memos MA'rrrmsnN, citizen of the United States,residing at San Antonio, in the county of Bexar and State of Texas, haveinvented certain new and useful Improvements in Spring'-`Wlieels, ofwhich the following is a specification.

This invention relates to resilient vehicle wheels and has for itsobject, the provision of an improved device of this characterconstructed in such manner as to eii'ectually resist both the verticaland lateral stresses to which the wheel is subjected when in use.

Further objects and advantages of the invention will be set forth in thedetailed description which now follows:

In the accompanying drawing, Figure l is a view partly in side elevationand partly in section, of a portion of a vehicle wheel constructed inaccordance with the invention, and F ig. 2 is a transverse sectionalview therethrough.

Like numerals designate corresponding parts in both of the figures ofthe drawing'.

By referring to the drawing, it will be seen that the wheel comprises anouter annular rim 5 and an inner annular ring (i spaced from each otherand held in rigid relation by tubular sleeves 7, said sleeves forminghousings in which hollow plungers 8 and 10 slide. The rim 5 carries atire, preferably of solid rubber, indicated at 9. Certain of the tubularsleeves 7 house plungers 10, the lower portions of which are pivoted at11 to rockers 12, the opposite sides of said rockers being pivoted at 13to a central hub member 14. All of the plungers S and 10 receive springs15 which bear be* tween rim 5 and the lower ends of the plungers S arerounded to receive the thrust of the convex faces 1G of rocker 152 andthe lower ends of these plungers enter and bear between outstandingflanges 17 of the hub member 111. Rollers 1S carried by the lowerportions of the plungers travel upon the traclrways 19 formed by theperipheral faces of said flanges, the entry of the lower ends of saidplungers between the side flanges 17 eifectually resisting the lateralthrust given to the hub member 14 when the wheel tends to skid inturning corners.

"When a wheel of this nature is used as a driving wheel, it is apparentthat there is a tendency for the hub portion 14 to rotate with relationto the outer portion of the wheel. This movement is in addition to thevertical movement of the hub portion with relation to the outer portionand such tendency to rotate causes a rocking of the rocker, whichmovementof the rocker is resisted when its concave portions 1G contactwith the lower ends of the plunger-s 8.

To prevent the entry of dust, dirt and mud to the space occupied by therockers, plates 2O may be employed, said plates beingcarried by theouter portion of the wheel and having slidable movement over the face ofthe hub member.

From the foregoing description, it will be seen that simple and ehicientmeans are herein provided for accomplishing the objects of theinvention, but while the elements shown and described are well adaptedto serve the purposes for which they are intended, it is to beunderstood that the invention is not limited to the precise constructionset forth, but includes within its purview such changes as may be madewithin the scope of the appended claims.

Having described my invention, what I claim is:

1. In a resilient vehicle wheel, the combination with an outer annularportion, of a hub portion, a plurality of spring actuated' plungersradially movable in said outer portion toward said hub portion, rockerarms disposed between said hub portion and said outer portion, saidrocher arms having concave faces disposed toward said outer p0rtion,said rocker arms being pivoted at one side at their central portions tosaid hub portion and pivoted at their opposite side to some of saidplungers, the other of said pluugers lying in the line of travel of saidrocker arms and having convex heads adapted to be engaged by the convexfaces of said rocker arms, said hub portion being provided with a pairof spaced, circumferential flanges between which the inner ends of saidlast named plungers enter, said plungers carrying rollers which travelupon the peripheral faces of said flanges.

2. In a resilient vehicle wheel, the combination with an outer annularportion, of a hub portion, a plurality of spring actuated plungersradially movable in said outer portion toward said hub portion, rockerarms disposed between said hub portion and said outer portion andpivoted at one side at their Central portions to said hub portion andpivoted at their opposite side to some of said plnngers7 the other ofsaid plungers lying in the line of travel of said rocker arms andadapted to be engaged thereby, seid hub portion being provided Withoutstanding flanges bet-Ween which the inner ends of seid last namedplungers travel7 seid ln testimony whereof I affix my signature in thepresence of tWo Witnesses.

MARIUS MATHIE SEN.

Witnesses C. W. BUHLER, J. M. HAMILfmN.

Copies of this patent may be obtained for ve cents each, by addressingthe Gommissoner of Patents, Washington, D. C.

